Suggested Retail: $69.99. Biswaye 40V 6Ah Lithium Battery Replacement for Ryobi Power Tools - This Biswaye 40V 6Ah Lithium Battery Replacement is compatible with Ryobi Power Tools including lawn mower, trimmer, weed eater, and blower. It features an on-board battery life indicator for user convenience and over-molded edges for impact protection. The battery is built with a circuit protection ensuring safety and stability. It also includes a fade-free lithium-ion power integrated microchip to prevent overcharging and extend battery life. The battery complies with FCC RoHS and CE security testing standards. Brand: Biswaye Model: OP4050A -- LOT STICKER: TCE-BOX-BOXTCED0340-ITEM-617f1fed___LPNPMBU8645350 Biswaye 40V 6Ah Lithium Battery Replacement for Ryobi 40V Battery OP4040 OP40601 OP4026 OP40261 OP40401 OP40501 OP4015 OP40602 OP40404 OP40603 Compatible with Ryobi 40V Cordless Power Tools -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.